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Način za nastavitev velikosti pisave vsake nalepke v oblaku oznak na podlagi vrednosti oznake

2019-11-21 22:03:37

Oznaka: JavaScript, Tag, Tag Cloud, font-size, Oblak oznake, velikost pisave

Formula, izračunana kot odstotek, je: size = (count - min) * (MAX_PERCENT - MIN_PERCENT) / (max - min) + MIN_PERCENT

Formula, izračunana glede na velikost pisave, je: size = (count / count_max) * (FONT_MAX - FONT_MIN) + FONT_MIN

Ob predpostavki, da je oznaka povezava HTML, $ pa je objekt jQuery, je koda naslednja:

JavaScript
// JavaScript
var count_arr = [];
    $("a.tag").each(function(){
        var count = $(this).attr("count");
        count_arr.push(count);
    });
    var count_max = Math.max.apply(null, count_arr);
    $("a.tag").each( function (i, o) {
        var FONT_MAX = 3;
        var FONT_MIN = 1;
        var count = $(this).attr("count");
        var size = (count / count_max) * (FONT_MAX - FONT_MIN) + FONT_MIN;
        $(this).css( "font-size", size + "em");
    });

Oznaka

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